USB: ohci-pxa27x: add DT bindings

Add DT bindings to the ohci-pxa27x driver and some documentation.

Successfully tested on a PXA3xx board.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 files changed